Method for connecting network for high-security information system

Abstract

The invention provides a method for connecting network for a high-security information system. The high-security information system comprises an information processing component, a controlling component, a storing component and a network component. The controlling component comprises a hardware switch; at least one control signal line of the information processing component for carrying out the write operation for the second storing component is connected with the second storing component through the controlling component; when the hardware switch is in the first state, the controlling component cuts off the connection of the control signal and the signal line of the second storing component; and when the hardware switch is in the second state, the controlling component keeps the connection of the control signal and the signal line of the second storing component. The method for connecting network for the high-security information system comprises the following steps: operating the hardware switch to make the hardware switch in the first state; reading the code for the network connection program from the second storing component by the information processing component and storing the code for the network connection program in the storing space of the information processing component; and operating the code for the network connection program in the storing space of the information processing component by the information processing component to connect the network for the high-security information system.

Description

technical field [0001] The invention relates to a network connection method of a high security information system, in particular to a network connection method of a security information system which prevents computer virus invasion and computer hacker attack by adopting a method of controlling hardware connection signals between a processor and a storage body. Background technique [0002] Explanation of terminology: The computer virus or virus mentioned in the present invention all have the same meaning, including adopting the clear definition in the "Computer Information System Security Protection Regulations of the People's Republic of China", that is, a computer virus "refers to compiling or inserting A set of computer instructions or program codes that destroy computer functions or data, affect the use of computers and are capable of self-replication”; also include those inserted into information systems other than computers that destroy information system functions or d...

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Problems solved by technology

[0013] The applicant of the present invention filed the application number 200710177690.8 on November 20, 2007. The title of the invention is "A Method and Device for Preventing Computer Viruses" and has been awarded Although the patent application for invention patent rights has solved the problem of cutting off the way of virus transmission, it still has not solved the network problems caused by hacker attacks, especially the problem of illegal tampering of web pages.

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